1// is_evenly_divisible_by.hpp --------------------------------------------------------------//
2
3// Copyright 2009-2010 Vicente J. Botet Escriba
4
5// Distributed under the Boost Software License, Version 1.0.
6// See http://www.boost.org/LICENSE_1_0.txt
7
8#ifndef BOOST_CHRONO_DETAIL_NO_WARNING_SIGNED_UNSIGNED_CMP_HPP
9#define BOOST_CHRONO_DETAIL_NO_WARNING_SIGNED_UNSIGNED_CMP_HPP
10
11//
12// We simply cannot include this header on gcc without getting copious warnings of the kind:
13//
14//../../../boost/chrono/detail/no_warning/signed_unsigned_cmp.hpp:37: warning: comparison between signed and unsigned integer expressions
15//
16// And yet there is no other reasonable implementation, so we declare this a system header
17// to suppress these warnings.
18//
19
20#if defined(__GNUC__) && (__GNUC__ >= 4)
21#pragma GCC system_header
22#elif defined __SUNPRO_CC
23#pragma disable_warn
24#elif defined _MSC_VER
25#pragma warning(push, 1)
26#endif
27
28namespace boost {
29namespace chrono {
30namespace detail {
31
32 template <class T, class U>
33 bool lt(T t, U u)
34 {
35 return t < u;
36 }
37
38 template <class T, class U>
39 bool gt(T t, U u)
40 {
41 return t > u;
42 }
43
44} // namespace detail
45} // namespace detail
46} // namespace chrono
47
48#if defined __SUNPRO_CC
49#pragma enable_warn
50#elif defined _MSC_VER
51#pragma warning(pop)
52#endif
53
54#endif // BOOST_CHRONO_DETAIL_NO_WARNING_SIGNED_UNSIGNED_CMP_HPP
55

source code of boost/libs/chrono/include/boost/chrono/detail/no_warning/signed_unsigned_cmp.hpp